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Be sure to answer all parts. Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water: Cr2O3(s) + 3H2S(g) → Cr2S3(s) + 3H2O(l) To produce 251 g of Cr2S3, (a) how many moles of Cr2O3 are required?

Respuesta :

Answer:

251 CrS3 x 1 moles Cr2S3/200 g Cr2S3 x 1 moles Cr2O3/1 moles Cr2S3 = 1.25 moles Cr2O3

Explanation:

Cr = 2x 52 = 104 g

S = 3 x 32 = 96 g

total 200

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